code: def is_available():
      try:
          import faiss
  
          return True
      except ImportError:
          return False
  
file_path: DESlib/deslib/util/faiss_knn_wrapper.py
imports: import numpy
  from sklearn.utils.validation import check_is_fitted
label_desc: Use image node_id 1 for calling a global function with example usage: is_available() and returns: True, False